Compositions for tinting hair



Patented July 14, 1953 r mm.

COMPOSITIONS son TINTING HAIR Frederick M. Lipman, Yonkers, N. Y.,assignor to Charles Marchand Company, New N. Y., a corporation ofDelaware Application January 26, 1951, Serial N0. 208,052 7 t 4 Claims.(01. 1s'7 ss' No Drawing.

This invention relates to a method and compositions for tinting hair andmore particularly to stable, nonhygroscopic hair tinting concentratescontaining benzene phosphonic acid.

.The use of coal tar dyes such as those acid dyes listed as suitable forfoods, drugs, or cosmetics by the United StatesFOod. and,Drug'Adrninistration in hair tinting. concentrates has been practiced inthe past. 7 However, the compositions of the prior art have had aserious drawback in that the concentrates, even when packed inso-calledmoisture-proof containers, tend to pick up moisture from the atmosphere,with consequent deterioration of the dyes themselves" and,in some cases,of the containers in which they are packed. The stained containerspresent an unattractive appearance, rendering the packaged concentratescommercially unsalable, and they must be returned to the manufacturer.The returned dyes cannot'be effectively recovered and, as a'result, aserious economic loss is sustained. 'Even more important than the actualreturn of unsalable merchandise is the loss of good will on the part ofthe purchaser who receives a package of deteriorated dye, thedeterioration of which has been concealed by the package. This customeris lost, and cannot be regained.

It is an object of this invention to produce hair tinting concentrateswhich are nonhygroscopic and which may be stored over long periods oftime without deterioration of the dyestufi or of the containers in whichthe concentrate is packed.

I have discovered that if benzene phosphonic acid (CGH5PO'(OH)2) is usedas the acid dyefixing agent in a hair dyeing concentratethe concentratewill not absorb water from the air and will remain effective in storageover long periods of time without any staining or deterioration of thepackage in which the concentrate is put up for sale. Furthermore, suchconcentrates, when dissolved in the proper amount of water, form aqueoussolutions of excellent dyeing powers, which are in no way injurious tothe hair or skin to which they are applied.

Normally, hair tinting concentrates are available as crystalline orpowdered concentrates to be dissolved in a stated quantity of waterbefore For use in tinting hair, the concentrate should be dissolved inwater in such quantities that one quart of the solution containsfrom.about 0.002

to 0.0 gram. of dye, and from about c ateau grains of benzene phosphonica cid. If the solu-. k tion contains less than 0.05 gram of acid, thedye--' ing rate becomes emreinely slow, sincethe acidity of'the'solution is not suficient to the dye upon the hair, and if more thanabout 210 grams of the acid is present, the acidity of the solution isso high that there may be danger of skin or eye irritation or evenpermanent damage. tion may then be applied tothe hair in any convenientmanner, to effect tinting thereof;

The benzene phosphonic acid may be used with acid dyes alone, or incombination with a buffer or diluent such as monobasic ammoniumphosphate, or sugar, or boric acid. Because. it is substantiallyunaffected by moisture either aloneor in combination with benzenephosphonic acid,

boricacid is preferred. It is necessary, however,

that benzene phosphonic acid be present in the mixture within theproportions specified above, since boric acid alone, in combination withthe dyes, will not produce a solution of sufficient acidity to fix thedye.

In order that those skilled in the art may more fully appreciate myinvention and the method of carrying it out, the following examples ofconcentrates prepared according to my invention are given, it'beingunderstood that the quantities are those which, when mixed with onequart of water, produce an efiicient and practicable tinting compositionfor home use:

The solu- 3 EXAMPLE III Platinum hair rinse Grams F D & C Blue #10.00023 D & 0 Red #33. 0.00046 D & C Black #1 0.00023 Ext. D & C Violet#2 0.00130 Benzene phosphonic acid 1.00000 and eliminating the economicloss sustained byreason of the unsalability of deteriorated or stainedpackages, and loss of good will. due to the dissatisfaction ofpurchasers receiving deteriorated concentrates in place of the topquality concentrates which they believe they are buying.

Having now described my invention, what I claim as new and'useful is:

1. As a new composition of matter, a dry hair tinting concentratecomprising nontoxic acid dye material and benzenev phosphonic acid, .intheproportions of from about 2 to about 50 parts by weight of dye tofrom about 50 to about 2000 parts by weight of benzene phosphonic acid.

2. As a. new composition of matter, a dry hair tintingconcentrate-consisting essentially of the following. ingredients'inapproximately the proportions set forth, all parts being by weight:

Parts D& C Brown #1 11 Ext. D 8: C Red #13 -1 3 Benzene phosphonic acid;500 Boric acid 1500 The concentrates produced ac- 3. As a newcomposition of matter, a, dry hair tinting concentrate consistingessentially of the following ingredients in approximately theproportions set forth, all parts being by weight:

Parts Ext. D & C Red #13 63 D 8; C Black #1 21 F D & C Yellow #1 147 D &C Red #33 42 Benzene phosphonic acid 1000 Boric acid 19000 4. As a newcomposition of matter, a dry hair tinting concentrate consistingessentially of the following ingredients in approximately theproportions set forth, all parts being by weight:

Parts F D 8; C Blue #1 23 D & C Red #33 46 D 8: C Black #1 23 Kt. D 8: CViolet #2 130 Benzene phosphonic acid 100,000

FREDERICK M. LIPMAN.

References Cited in the file of this patent UNITED STATES PATENTS NumberName Date Re. 17,153 Mingus Dec. 4, 1928 1,864,718 Feibelmann June 28,1932 2,167,502 Frew July 25, 1939 FOREIGN PATENTS Number Country Date593,314 Great Britain Oct. 14, 1947 375,218 Great Britain June 23, 1932OTHER REFERENCES Heilbron: Dict. Org. Compounds, volume III, page 437(1943 entry Phenylphosphorus Acid C6H5.PO (OH)2.

Beilstein: Handbuch der Organischen Chemie, 4th edition, volume 16, page803.

1. AS A NEW COMPOSITION OF MATTER, A DRY HAIR TINTING CONCENTRATECOMPRISING NONTOXIC ACID DYE MATERIAL AND BENZENE PHOSPHONIC ACID, INTHE PROPORTIONS OF FROM ABOUT 2 TO ABOUT 50 PARTS BY WEIGHT OF DYE TOFROM ABOUT 50 TO ABOUT 2000 PARTS BY WEIGHT OF BENZENE PHOSPHONIC ACID.